Report of first expedition to South America, 1913 . the varietyLeishmania tropica (Wright) var. americana and Vianna thevariety Leishmania hrasiliensis. The former was said to becharacterized particularly by the flattened nucleus. For thepresent at least from the evidence available we do not feeljustified in creating a new species for the parasite discoveredby us as the etiological factor of uta. Attention has beencalled to the presence of the additional basal granule in theflagellate stage of the parasite of uta. A dog was inoculatedon August 1 upon the inner surface of both ears by a stab an
Report of first expedition to South America, 1913 . the varietyLeishmania tropica (Wright) var. americana and Vianna thevariety Leishmania hrasiliensis. The former was said to becharacterized particularly by the flattened nucleus. For thepresent at least from the evidence available we do not feeljustified in creating a new species for the parasite discoveredby us as the etiological factor of uta. Attention has beencalled to the presence of the additional basal granule in theflagellate stage of the parasite of uta. A dog was inoculatedon August 1 upon the inner surface of both ears by a stab andscarification with fresh material from a lesion upon the faceof a case of uta. On September 16 upon the internal surfaceof the left ear two papules measuring 3 and 4 mm. in diameterwere observed, elevating the surface of the skin. (Plate 1.) These were whitish in the center and slightly pink atthe periphery. In the right ear four similar lesions were also 1 Laveran and Nattan-Larrier: Bull. Soc. de path, exotique, Par., 1912, v, 176, Fig. 1
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